The moment of inertia of a thin rod about an axis passing through its mid point and perpendicular to the rod is 2400 g cm^2. The length of the 400 g rod is nearly :

NEET UG 2024 · Physics · Question 27

NEET 2024 Physics, question 27

Question 27 of the NEET 2024 paper (code T2) is a Physics question from System of Particles and Rotational Motion. Its idea, Moment of Inertia of Standard Bodies, was asked 3 times, in 2018, 2021 and 2024, across NEET 2017–2026. The NTA final answer key gives option 3.

Updated 2026-10-08

Q27 · Physics

^2

1 20.7 cm 2 72.0 cm 3 8.5 cm Official answer 4 17.5 cm

Official answer: option 3 · NTA final answer key

Same idea

Moment of Inertia of Standard Bodies, in other papers

NEET asked this idea 3 times, in 2018, 2021 and 2024. The other 2 questions below.

2021 Q 36 From a circular ring of mass 'M' and radius 'R' an arc corresponding to a 90° sector is removed. The moment of inertia of the remaining\dots One-line MCQ \cdot Medium 2018 Q 31 Three objects, A : (a solid sphere), B : (a thin circular disk) and C : (a circular ring), each have the same mass M and radius R. They\dots One-line MCQ \cdot Medium

Moment of Inertia of Standard Bodies: every question and how it was framed

The chapter

System of Particles and Rotational Motion in ten years of NEET

25 questions from 2017–2026, asked in 10 of 10 papers, about 2.4 a paper. Rotational Motion alone had 21.

Chapter analysis Study this chapter Practise this chapter

Moment of Inertia of Standard Bodies, in other papers

System of Particles and Rotational Motion in ten years of NEET

System of Particles and Rotational Motion: questions per paper